Lumban Gaol CP. Application of Indonesian National Standard (SNI) on Helmets of Two-Wheeled Motor Vehicle Riders: Consumer Rights and Obligations of Business Actors. J. Progressive. Law. Leg. Stud. [Internet]. 2023 Jan. 31 [cited 2025 Oct. 23];1(01):47-56. Available from: https://risetpress.com/index.php/jplls/article/view/31